US3836512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymerization of olefinically unsaturated monomers
Assignee: Lyondell Chemical Technology LP
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Filing: 1972-08-15
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Granted: 1974-09-17
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Expires: 1992-08-15
Abstract
Abstract HOMOGENEOUS COPOLYMERIZATION OF WATER SOLUBLE AND WATER INSOLUBLE OLEFINICALLY UNSATURATED MONOMERS HAS BEEN EFFECTED BY THEIR AQUEOUS POLYMERIZATION IN THE PRESENCE OF A DISPERSING AGENT, A REDOX CATALYST SYSTEM, A LIQUID HHYDROCARBON, AN EMULSIFIER AND OPTIONALLY A CROSSLINKING AGENT AND ELECTROLYTE.
Inventors
- 👤 N Chu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:10
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/12; C08F2/16; C08F2/22; C08F2/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-16 | 1978-03-18 | 1978-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-16 | 1982-03-18 | 1982-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-16 | 1986-03-18 | 1986-09-17 | $7700.00 | Window Closed / Lapsed |